Package net.sf.saxon.expr.flwor
Class CountClausePull
java.lang.Object
net.sf.saxon.expr.flwor.TuplePull
net.sf.saxon.expr.flwor.CountClausePull
A tuple stream that implements a "count" clause in an XQuery 3.0 FLWOR expression
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionboolean
nextTuple
(XPathContext context) Move on to the next tuple.
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Constructor Details
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CountClausePull
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Method Details
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nextTuple
Move on to the next tuple. Before returning, this method must set all the variables corresponding to the "returned" tuple in the local stack frame associated with the context object- Specified by:
nextTuple
in classTuplePull
- Parameters:
context
- the dynamic evaluation context- Returns:
- true if another tuple has been generated; false if the tuple stream is exhausted. If the method returns false, the values of the local variables corresponding to this tuple stream are undefined.
- Throws:
XPathException
- if any error occurs
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